Auxiliary power unit



FIG. 1 is a top front left perspective view of a design for an auxiliary power unit according to the present invention.

FIG. 2 is a bottom front right perspective view of the auxiliary power unit of FIG. 1.

FIG. 3 is a front view of the auxiliary power unit of FIG. 1.

FIG. 4 is a back view of the auxiliary power unit of FIG. 1.

FIG. 5 is a right side view of the auxiliary power unit of FIG. 1.

FIG. 6 is a left side view of the auxiliary power unit of FIG. 1.

FIG. 7 is a top view of the auxiliary power unit of FIG. 1; and,

FIG. 8 is a bottom view of the auxiliary power unit of FIG. 1.

The broken line showing of an auxiliary power unit is for the purpose of illustrating portions of the article and forms no part of the claimed design. 

CLAIM The ornamental design for an auxiliary power unit, as shown and described. 